What should I know about maintaining a Damascus katana in a display setting?
Updated Mar 2026
For long-term display, the primary concern is oxidation of the blade surface. Apply a thin coat of choji oil or food-grade mineral oil every two to three months, wiping on with a soft cotton cloth and buffing off any excess. Avoid leaving fingerprints on the blade - skin oils accelerate surface tarnish. Store or display the sword in a low-humidity environment; moisture is the principal cause of spotting on pattern-welded steel. If the saya is lacquered hardwood, keep it away from prolonged direct sunlight, which can fade the color layers over time. Inspect the mekugi pin annually to confirm the handle-to-tang connection remains snug.